Help with sizing

I recently decided to buy myself a CG Langford Parka - ordered both the M and L online to figure out best fit. Little did I know the L was too large, and the M fits perfectly except for the chest area / shoulders width being too tight which restrict arm movements a bit and limits my ability to layer. I’m 6’2 male and relatively fit, are there any alternative parkas you would recommend? I was really looking forward to my first CG, and especially black label